Messages in this thread | | | Date | Wed, 1 Oct 2014 23:10:47 +0200 | From | Wolfram Sang <> | Subject | Re: Fwd: [Proposal] PM sleep children of inactive I2C bus segments off Masters in multi-master systems |
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> Maybe you can find an error code which with some level of confidence > reflects "lost mastership". Then you can implement whatever makes sense > for your use case in your user space application(s).
We have a documented fault code for ArbitrationLost and that is -EAGAIN (see Documentation/i2c/fault-codes). If a driver does use something else, patches are very welcome.
Other than that, I find this thread very confusing. Of course can another master modify the clients, this is what multi-master is all about, no?
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